Automatic check for oil-wells



2 sheets-sheet 1.

J. O'NELL,4 l AUTOMATIC GHEGK'POROIL WELLS.

` (No Model.)

APal/sented June, 1890.

WL'zesses.

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(No Model.) 2 sheets-sheet 2.

J. ONBIL. AUTOMATIG CHECK POB. oIL WELLS.

No. 429,317. Patented June 3, 1890.

UNITED STATES PATENT OFFICE.

JOSEPH ONEIL, OF TAYLORSTOVVN, PENNSYLVANIA.

AUTOMATIC CHECK FOR 4OIL-WELLS.

SPECIFICATION forming part of Letters Patent No. 429,317, dated J' une3, 1890.

Application filed July 24, 1889. Serial No. 318,509. (No model.)

To all whom it may concern:

Be it known that I, JOSEPH ONE'IL, a citizen of the United States,residing at Taylorstown, in the county of Washington and State ofPennsylvania, have invented certain new and useful Improvements inAutomatic Checks for Oil-Vells; and I do hereby declare the following tobe a full, clear, and exact description of the invention, such as willenable others skilled in the art to which it appertains to make and usethe same.

This invention relates to oil-well checks; and it consists in animproved construction of automatic oil-well checks, as hereinafter setforth and claimed.

In the accompanying drawings, Figure l is a vertical section of myimproved check in position in the tubing of a well. Fig. 2 represents aside View of the check. Fig. 3 rep-V resents a vertical section of awell-tube provided with my improved check and other devices.

A designates the tubular body of the check, the said body extending intothe working-barrel B and resting at a thereon. A ring b is screwed tothe lower end of the body A and secures a cup-leather, which forlns aclose joint with the barrel. j

O indicates a housing or cage, in which is placed the valve D, the saidcage being screwed to the body A and having apertures c, which areopened and closed by the movement of said valve. The valveD has atubularstein, which extendsupward, and to the valve-stem is secured astuiling-box E, which is provided with packing d, as shown. A follower gis placed in the stufiing-box over the packing, and a perforated cap Fis screwed to the top. The apertures e in the cap admit the iiuid, whichpresses the follower downward, and thus compresses the packing. Thesucker-rod extends down through the check, passing through thestufng-box and checkvalve, the check being placed on the rod and passeddown into the tubing Gr.

vstroke of the rod.

m indicates the working-valve in the piston-head, carried by the rod h,and k indicates the foot-Valve in the working-barrel. By thisconstruction the check is automatic in operation. At each upward strokeof the rod h, which passes down through the check,

. the valve D and stuffing-box are raised by the rising fluid, whichpasses out through the apertures c, and is prevented from returning bythe closing of the valve on the downward The working-valve in the pistonis thus to a certain extent relieved on the downward stroke of pressurefrom the oil which has passed up through the valve-case.

The cup-leather, secured by the ring b, serves to keep the body Ainplace and forms a packing between the working-barrel and the tubularbodyA, which prevents the passage of oil outside of said body. The packing din the stuffing-box is compressed and kept in good condition bythe'pfluid entering the stuffing-box through the apertures e in the capF and pressing down the follower g,whicl1 is loose on the rod h.

I claiml. In an oil-well check, the combination, with a tubular body, ofa perforated housing or cage secured thereto, a tubular valve placed insaid cage, a stuffing-box connected withr said valve and provided with aperforated cap, a follower g, and a sucker-rod, substantially as and forthe purposes described.

2. The combination,with the tubular body provided with a ring b andpacking, of the working-barrel B, a perforated housing secured to saidbody, andavalve placed loosely in said housing, substantially as and forthe purposes described.

In testimony whereof l have aixed my signature in presence of twowitnesses.

JOSEPH O N EIL. Witnesses:

J. H. GINTER, W. A. FAIRBAIRN.

